1/* FMA version of fma.
2 Copyright (C) 2009-2019 Free Software Foundation, Inc.
3 Contributed by Intel Corporation.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
19
20#include <config.h>
21#include <math.h>
22#include <init-arch.h>
23#include <libm-alias-double.h>
24
25extern double __fma_sse2 (double x, double y, double z) attribute_hidden;
26
27
28static double
29__fma_fma3 (double x, double y, double z)
30{
31 asm ("vfmadd213sd %3, %2, %0" : "=x" (x) : "0" (x), "x" (y), "xm" (z));
32 return x;
33}
34
35
36static double
37__fma_fma4 (double x, double y, double z)
38{
39 asm ("vfmaddsd %3, %2, %1, %0" : "=x" (x) : "x" (x), "x" (y), "x" (z));
40 return x;
41}
42
43
44libm_ifunc (__fma, HAS_ARCH_FEATURE (FMA_Usable)
45 ? __fma_fma3 : (HAS_ARCH_FEATURE (FMA4_Usable)
46 ? __fma_fma4 : __fma_sse2));
47libm_alias_double (__fma, fma)
48
49#define __fma __fma_sse2
50
51#include <sysdeps/ieee754/dbl-64/s_fma.c>
52